When preparing to replace head gasket on a crd I loosened the drain petcock too far because it never started draining. I knew it was a peculiar setup. I ended up putting pressure toward the radiator using something like a screwdriver against something nearby while I turned it with wrench and got the groove /slot to line up and it finally started threading back in. I had visions of sealing the drain with something and having to drain via lower radiator hose or elsewhere.
Turns out the prior owner had put something like bard stop leak in it with the grayish fibers and they had clogged up the drain so it couldn't drain at all. I flushed it as best I could and I applied some compressed air and water hose to the drain and it started working .
It was also apparently a salvaged radiator due to yellow crayon type writing on it. So I assume he had a leak elsewhere like the head and though it was radiator and changed it to later find it wasn't fixed. Then he parked it due to overheating and coolant loss.
_________________ 05 Blu LIM, OME GDE Tbo, wk II 245/75/17, KC Lights, bull bar, 195K H TC 05 Blu Lim, Dayton, GDE HT, 255/75/18 , 210K , H TC 06 Bla Lim, GDE Eco, Destination AT 245/75/17, 151K, H TC 06 D Khaki Lim 126K wkII Eur TC 05 D khaki Lim 145k refurbishing All CRDS: Fumoto, Lift , Fan Shroud mod, fuel head Gen II, SAMCOS,self TB, 2 Mic filt, Hayden
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